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Tag: "features" at biology news

Threats to wild tigers growing

...nd southern Nepal as a notable victory. The scheme features wildlife corridors that connect 12 reserves. Tiger conservation efforts have also been successful in the Russian Far East. Many tiger reserves in the India, in contrast, have been mismanaged and have failed to protect the animals, according to the ar...

Breakthrough developments in rheumatoid arthritis reported

...cts with rheumatoid arthritis. With these clinical features at his side, he turns to the basic building blocks of life – the human genome – to figure out what makes these people susceptible to the disabling inflammatory condition. Dr. Gregersen has finally closed the circle between key genes identified in h...

Genetic factors are linked to fever following smallpox vaccination

...rites, “The long-term goal is to determine genetic features that could be determined prior to vaccination, allowing practitioners to modulate the vaccination plan according to risk. This type of practice, the goal of personalized predictive medicine, appears closer in feasibility than ever given the pace of ...

Exploring the dark matter of the genome

...ing genes. The heterochromatin also includes other features of biological importance, including sequences that code for non-protein-coding RNAs and other functional elements, such as small RNAs that neutralize transposable elements, or transposons -- DNAs similar to viruses that hop around the genome and are ...

Reconstructing the biology of extinct species: A new approach

...igh-resolution x-ray CT scanner, which can resolve features approximately 1/100 the size of those detected by medical CT scanners. In addition, experienced field workers used personal knowledge or film of animals in the wild to classify species into one of six locomotor categories ranging from very slow and ...

Helping chlorine-eating bacteria clean up toxic waste

...re will be a suite of models, and we can highlight features that are common across several models," she said. "As we develop the model, we can begin to look at the genomes of other strains of Dehalococcoides. If genes that are important in our strain are found in others ... then we can do the same experiments...

Ice Age extinction claimed highly carnivorous Alaskan wolves

...eth than living wolves. “Taken together, these features suggest a wolf specialized for killing and consuming relatively large prey, and also possibly habitual scavenging,” Leonard said. Chemical analyses of the bones back up this conclusion. Carbon and nitrogen isotope values of the Alaskan wolf bones ...

Puzzling plankton yield secrets to role in evolution/global photosynthesis

...abolic capabilities. "We found several striking features of genome organization," said DOE JGI’s Igor Grigoriev, the PNAS paper’s senior author. "Overlapping genes conserved across the species may enable them to cross-regulate their expression, while species-specific chromosomes with horizontally transfer...

Corals -- More complex than you?

... can throw new light on the origin of such complex features as the nervous and immune systems of vertebrates. Around 10 or 12 per cent of the known coral genes are in fact shared uniquely with vertebrates ?these are genes that have been lost from all other animals so far examined. These include genes for t...

DOE JGI sets 'gold standard' for metagenomic data analysis

...e group of organisms. Other methods use intrinsic features of the sequence, such as oligonucleotide frequencies. Patterns of these features help to discriminate between the possible groups of organisms that contributed the sequence. Seve...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...es during their evolution (2aAB1), and the notable features of 36 cat species' middle ears, which may provide ...other. A variation of morphing is to transfer the features of one sound, say a cat's meow, to another sound, such as a musical instrument. Kelly Fitz of Star...

Effect on breast tumors of DNA alternations in 3 genes described

... was not associated with other clinicopathological features of breast cancer, such as tumor size, histological grade or nuclear grade. "Our data suggested that promoter hypermethylation is common in breast cancer," Tao added. "Because promoter hypermethylation is potentially reversible, identifying cancer...

Fused nasal bones helped tyrannosaurids dismember prey

...ing a semi-trailer," he said. "All of the T. rex's features came together to give it the strongest bite of any land animal. The T. rex just blows everyone out of the water when it comes to strength. "The fused nasal bones had been observed before, but no one but us and Emily Rayfield of Bristol hypothesize...

Brain maps online

...C Davis Center for Neuroscience. BrainMaps.org features the highest resolution whole-brain atlases ever constructed, with over 50 terabytes of brain image data directly accessible online. Users can explore the brains of humans and a variety of other species at an unprecedented level of detail, from a broa...

In Iran, cheetahs collared for the first time

...l between protected areas, and will reveal the key features in the landscapes that are critical to their survival. . "This is an amazing milestone in securing the long-term future for the Asiatic cheetah," said Wildlife Conservation Society biologist Dr. Luke Hunter, who led the international team. "We kn...

Out-of-body experiences may be caused by arousal system disturbances in brain

...y experience could show many of the same prominent features of a near death experience. Near death experiences are responses to a life-threatening crisis, and are characterized by a combination of disassociation from the physical body, euphoria and transcendental or mystical elements. This investigation su...

Beyond the DNA: Chemical signatures reveal genetic switches in the genome

...e have an incomplete understanding of the sequence features that identify enhancers. The elucidation of a common histone modification signature will enable scientists to quickly identify enhancers and promoters for a gene, which will lead in turn to rapid identification of factors that control its expression....

Gene found for rare disorder may reveal new pathway in mental retardation

...ental retardation, but with less pronounced facial features and none of the limb defects, such as missing hand...ions had milder versions of the distinctive facial features found in classical CdLS, such as thin eyebrows that join together, long eyelashes, thin lips and exc...

Nanotextured implant materials: blending in, not fighting back

...ell culture, they found that the nanoscale surface features encouraged endothelial cells to colonize the mater...meters in diameter. The surface with 200-nanometer features strongly favored the adsorption and spreading of fibronectin, a protein that helps endothelial cells...

Smithsonian scientists discover new marine species in eastern Pacific

...lly paid off," Norenburg said. One of the unique features of the islands off the coast of Panama is that they host animals that normally are found in the Indo-Pacific, half a world away. "To think that the larvae of Hymenocera picta, a little shrimp we collected on Isla Seca, can survive a journey of more ...

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